Covering for surfaces exposed to the weather



May 7, 1935. (3y KNAPP COVERING FOR SURFACES EXPOSED TO THE WEATHER Original Filed Nov. 29, 1930 P o. R mM NV\| E vE we R O E 6 JZ m ATTORNEY Patented May 1,1935

UNITED STATES PATENT orrlca" covEaiNG ron $233313; Exrosun T I I THE WE ATHER George Knapp, St. Louis County, -Mo., assignor to Certain-Teed Products Corporation, New York,

N. Y., a corporation of Maryland Application November 29, 1930, Serial No. 498,993 Renewed July 31, 1934 10 Claims.

This invention relates'to coverings for walls to simulate the exposed surface of masonry and especially to'a weatherproof covering in the form of strips in overlapped arrangement upon th wall to produce the effect of brickwork.

Coverings for exposed walls of buildings have been heretofore'used as a protection against the weather to simulate shingles and other construc-' tions and in most instances the shingle simulating effect has been produced in strips of weather resisting material by cut-outs transverse to the edge of the strips. Modifications of these shingle simulating strips have been attempted in the efiort to produce a covering having a. surface In most instances granular mineral material,

such as slate or granulated rock, has been used as the material for simulating the brick surface and, owing to the overlapped constructions which have been adopted utilizing cut-outs formed in the strips, the vertical joints of the brickwork have not been given the proper appearance since the surface exposed by the cut-out is that simulating the brick surface rather than the cement or mortar of the joint. Furthermore no adequate means has been proposed for representing the horizontal mortar joint either in its surface character or in the proper depth of shadow formed by such a joint in brickwork. The result has been a flat appearing surface only-remotely resembling the exposed surface of brickwork having the various characteristics of jointsan'd of surface, texture and color.

One object of the present invention therefore is to provide a covering for walls which willproduce the eifect of masonry, and especially bricks, laid up in mortar joints.

Another object of the invention is to provide a strip of suitable base-material upon which is formed the representation of the horizontal joint of brickwork, the vertical joints of the brickwork being simulated by cut-outs in the strip transverse to the edge thereof.

A further object of the invention is to provide a. combination of surfaces in relation to a stripe representing the horizontal joint so that when the strips are laid in overlapping arrangement upon the wall the surface exposed" by the cut-outs will have the proper vertical joint character as to surface and shade.

A further object of the invention is to provide a strip which may be formed in multiple in the manufacturing operation and which upon separation of the individual strips will be ready for application to the surface to be covered.

Other features of the invention will be best understood from a consideration of the following description when taken in conjunction with the accompanying drawing, in which Fig. 1 shows an assembly of strips of the form of the present invention as applied to a wall in overlapping arrangement; v

Fig. 2 shows a. single strip of the form embodying the features of the present invention;

Fig.3 shows a section on linej3-3 of the strip shown in Fig. 2; and i I Figai shows a modified form of strip arranged upon the wall to simulate th'eFlemish bond construction of brickwork.

It will be seen from Fig. 1 showing the assem-' bly arrangement to simulate brickwork that strips of relatively long length compared to their width are placed in horizontal position with the. lower edge of each strip overlapping the upper portion of the strip below upon the wall. The extent of this overlap issuch that the lower edge of the a strip substantially meets the upper edge of the lengthwise stripe or groove formed in the strips and of such width as to correspond to the width of the'horizontal joint of brickwork. The exposed port-ion of the strip from the lower edge of the groove to the lower edge of the strip is of a width corresponding to the depth of a'briok. This lower exposed portion of. the strip is divided into sections representing the horizontal dimensions of bricks by cut-outs in the strip running from the lower edge of the strip to the lower edge of the horizontal stripe or groove.

It will be seen that this horizontal stripe is of striking eiiect in the simulation of the horizontal joint of the brickwork. Without such a stripe or groove the only simulation of the horizontal joint will be produced by the shadow of the overlapping edgeupon the strip below. This shadow and appearance of the edge although satisiactory for shingle-simulating effect is not suitable to give the effector :a joint in masonry or brickwork and this has been a fault in previous attempts to simulate masonry surface. By provision of the stripe is the'efiect producedof "raked out" joints in brickwork.- In addition the shadow effectof the overlapping edge may serve to accentuate the sim- 4 ulation of the horizontal joint and, as will be herelapping exposed portion of the strip is that of the upper portion of the strip below and that this overlapped portion of the strip below is that which It is therefore i is seen through the cut-outs. advantageous that the surface of the overlapped portion of the strip be such asto give the appearance of the mortar in the vertical'joint. This may be accomplished by surfacing the overlapped portion of the strip with suitable material to give the color texture or other surface characteristics of the mortar. Similarly the surface of the horizontal stripe or groove may be so formed or may be covered with suitable material as to produce the appearance of the mortar in the horizontal joint.

Fig. 2 illustrates a single strip of ,the character used in the assembly shown in Fig. 1 and may be advantageously made by using a strip i of sheet roofing material coated at least on one side with an asphalt coating 2 suitable to receive and hold thereto a covering of granular material 3, 5, such as slate or ground rock. In the manufacture of such a strip the stripe 4 representing the horizontal brick joint may be advantageously made by the method described in the patent to Outman No. 1,426,497, in which a groove is scraped in the asphalt coating. These grooves may be scraped in multiple in the operation of manufacture as parallel grooves lengthwise of a sheet spaced apart distances such that when the sheet is slit at points between the grooves strips will be formed having edges at a distance from the groove equivalent to the depth of a brick. The other edges of the strips may be at distances from the grooves to provide a suitable overlapped area when assembled.

In order to simulate the face surface of bricks upon the asphalt coated surface a covering of material 3 such as granulated slate of suitable color and size may be applied to the portion between the edge' of the strip to be exposed and the groove. Upon the portion at the other side of the groove may also be applied a covering 5 of slate or granulated material preferably of such size and color as to present the appearance of the vertical mortar joints when seen through the cut-outs as described. The color and size of grain of the covering material in the groove and upon the overlapped portion of the strip may be -varied to simulate mortars and cements of different colors and character and to accentuate the depth of the joint. I have also found it practical to leave the groove with no covering or with only a light dusting of fine material to simulate the black joints sometimes used in brickwork. The granular coverings for the overlapped portion of the strip will then be made of black or dark material to give the same effect for the vertical joints.

The depth of the covering material on the overlapped portion or on other portions of the surface and the depth of the layer of asphalt may be varied to suit different conditions. One such condition has been mentioned above, namely, that by using upon the overlapped portion a layer of granular material of suitable thickness the overlapping edge of the strip above may be raised aooopso somewhat, thereby accentuating the shadow effect and the-horizontal brick joint simulation. A further object ofthe application of granular material to the overlapped portion of the strip is to provide stiffness-both for handling and for more durable structure. This construction and its purposeswill be understood from Figure 3 showing a cross section of the strip of Figure 2, taken in connection with the other figures. Like reference characters are used for like parts or portions in the different figures.

The desired thickness of the overlapped por tion may also be obtained by using'a thicker layer of asphalt for the overlapped portion or the layer over the whole surface of the strip may first be made of the same thickness and the overlapped portion then increased in thickneses by a suitable method, such as coating this portion with a second layer. Other modifications of the form of the strip and the method of producing the stripe or groove and the relation of the surfaces of the exposed portion of the strips to the overlapped portion and to the groove may be adopted.

In my prior application, Serial No. 442,764, filed April 9, 1930, I have disclosed a covering in which the overlapped portion is formed with the same character of surface as and without demarkation from the area which is to represent the horizontal joint. Such a form of covering is adapted to be made by the scraping process of Outman, Patent No. 1,426,497, or may be made by any other suitable method to provide an area adjacent that which simulates the exposed masonry surface which, when overlapped, will represent the horizontal and vertical joints of the brickwork or other masonry. The horizontal or longitudinal joint is then formed by leaving uncovered a marrow portion of said area adjacent the masonry simulating surface and between the upper edge of said masonry simulating surface and the lower edge of the overlapping strip, the vertical or transverse joints being simulated by the portions of said adjacent area seen through the cut-outs. The covering of the present invention is an improvement on the covering of said prior application.

The cut-outs 6 which are formed in the strip to simulate the vertical brick joints may be formed in the process of manufacture immediately after surfacing the areas with granular material, thereby forming clean and sharp edges to the brick-simulating sections which therefore have the characteristics of regular bricks. While the cut-out is described as extending from the lower edge I of the strip to the lower edge 8 of the horizontal stripe or groove, the invention is not limited to the particular length of the cut-out and modifications of the length and position of the cut-out may be made within the scope of the invention. The purpose of the notch or cutout in the strip is to make visible 9. portion of the overlapped surface of the strip beneath having thereon a covering of a character to represent the mortar of masonry joints. It also provides the effect of depth and width of joint similarly to that described in connection with the groove. These cut-outsmay also serve the purpose of draining the horizontal groove and thus prevent the accumulation of water therein.

pending application having a common assignee with this present application.

What is claimed as new is 1. A protective covering for buildings comprising a sheet having a coating thereon in which is formed a groove to simulate the longitudinal joint of masonry and having a cut in the sheet to simulate a transverse joint of masonry, and surfacing material embedded in the coating to simulate the masonry surface, said groove and said out demarking upon the strip a masonry unit and joints adjacent thereto.

2. A brickwork simulating covering for the surface of building walls consisting of a rectangular strip of asphalt impregnated felt covered at least on the surface to be exposed with a coating of asphalt having therein a groove running lengthwise of the strip at a distance from the edge thereof to be exposed equivalent to the exposed depth of a brick, said asphalt coating between the groove and said edge having adhering thereto granular material of such color and size as to simulate the exposed surface of bricks, said brick simulating surface being divided by cut-outs in the felt extending to meet the groove and spaced distances alternately equal to the length and width of bricks to simulate Flemish bond brickwork construction.

3. A brickwork simulating covering for thesurface of building walls consisting of a sheet of asphalt impregnated felt covered on one side thereof with a coating of asphalt having scraped therein a continuous sharply defined groove running across the sheet at a distance from the edge of the sheet to be exposed equivalentto the exposed depth of a brick, said asphalt coating having its ungrooved portions covered with a layer of granulated colored slate, the portion thereof between said groove and said edge being covered with slate of a character to present the appearance of brick surface, saidbrick simulating surface being divided by cutouts in the felt spaced 9. distance equivalent to the exposed horizontal dimension of a brick and extending from said exposed edge to meet the near side of the groove.

4. A covering for laying upon a surface in overlapping arrangement comprising a base having a stripe'of defined width to represent the longitudinal joint of masonry and separating the portion of the surface of the covering to be exposed from the portion thereof to be overlapped, and granular material at the side of the stripe to be overlapped of such a character and applied in such an amount as to provide a greater thickness of the covering than that at the other side of the stripe.

5. A covering for building walls composed of a plurality of strips cut from sheets of roofing felt impregnated and coated with asphalt, each strip having a groove lengthwise thereof and cuts in the felt crosswise of the strip-and intersecting the groove, whereby the exposed faces of bricks are simulatively demarked, the strips being laid on the wall surface in horizontal rows endwise to each other in the rows and having the lower edge of the strips of each row overlapping the strips in the row below to substantially cover all --the surface of said lower row except the groove and the brick face. I

6. Covering unit for the surface of a wall of a form to be applied in overlapped arrangement upon the wall, comprising a base, a coating of adhesive upon at least one side of the base, granular material adhering to the coating, said unit stripe.

having a stripe of defined width upon said coated side to simulate the horizontal joint of masonry adjacent a simulated masonry unit and dividing a portion of the unit to be overlapped from the portion thereof to be exposed, the, granular material upon said exposed'portion being of such character and being so applied as to simulate the surface of a masonry unit, the thickness of the overlapped portion of the covering unit as composed of the thickness of the coating of adhesive 10 and of the granular material thereon being greater than the thickness of said exposed portion of the covering unit so as to raise the next overlapping exposed portion to accentuate the simulation of the horizontal masonry joint.

7. A covering for the surface of a building wall comprising a plurality of sheets of covering material in overlapping arrangement, the exposed portions of the covering being provided with stripes thereacross sopositioned thereon and of such defined width as to represent the longitudinal joints of masonry between 'and demarking courses of masonry units and having cuts in the sheets extending transversely to and intersecting the stripes to represent the transverse joints of the masonry.

8. A covering for the surface of a building wall comprising a plurality of sheets in overlapping arrangement upon the wall, the overlapped portions of the sheets having a surface" of a character to represent the surface of masonry joints, the sheets of said covering having stripes across the exposed portions thereof so positioned thereon and of such defined width as to represent the longitudinal joints of masonry between and demarking courses of masonry units and having cuts in the sheets extending transversely to and intersecting the stripes and exposing areas of the overlapped portions of the sheets to represent the transverse joints of the masonry.

9. A covering element for laying upon a surface in courses in overlapping arrangement with other elements comprising a sheet having upon the portionthereof intended to be exposed a surface of a character to simulate the surface of a masonry unit, said element having a stripe extending across said portion to be exposed, said stripe being of defined width and being positioned upon the element to demark a masonry unit and to simulate a longitudinal joint adjacent said masonry unit, said element also having cutoutsin the sheet extending transversely to and meeting said stripe to simulate the transverse joints of the masonry.

10. A covering element for laying upon a surface in courses in overlapping arrangement with other elements comprising a sheet having upon the portion thereof intended to be exposed a surface of a character to simulate the surface of a masonry unit, said element having a stripe ex-"' tending across said portion to be exposed, said stripe being of defined width and beingpositioned upon the element to demark a masonry unit and to simulate a longitudinal joint adjacent said masonry unit, said element also having cut- 05 outs in the sheet extending transversely'to and meeting said stripe to simulate the transverse joints of the masonry, said element having upon the portion thereof to be overlapped 'a surface of a character to simulate the surface of masonry joints, said portion to be overlapped having an extent transversely of the strips at least as great as the extent of the cutout transversely of the GEORGE mfm. 

